Fargesia  HARDY BAMBOO  Clumping bamboos from the alpine conifer forests of west and southwest China.  Medium to small and all very cold hardy, but not tolerant of extremely high summer temperatures. -American Bamboo Society 
This genus has many great species and cultivars that are well behaved and wont swallow your garden whole.

Festuca glauca 'Elijah Blue' BLUE FESCUE Bright blue from the time the snows are melting until winter returns, staying a lesser blue all winter. The fine, soft appearance of its blades as well as its blue color work successfully as ground covers, in rock gardens and in the foreground or edges of sunny garden locations. Dry tolerant, needs good drainage, prefering average moisture in moderate soil. It is currently the most popular Fescue.